The Ka band (Pronounced: `Kay-Ay Band`) covers the frequencies of 26.5–40 GHz, i.e. wavelengths from slightly over one centimeter down to 0.75 centimeters. The Ka band is part of the K band of the microwave band of the electromagnetic spectrum. This symbol refers to `K-above` — in other words, the band directly above the K-band. The 30/20 ...Found on http://en.wikipedia.org/wiki/Ka_band